Fig. 2From: Double-blind, randomized, placebo-controlled study to evaluate erenumab-specific central effects: an fMRI studyExperimental Design. A Experimental design with baseline headache frequency and double-blind randomization to either verum or placebo. B Functional Imaging Field of View – EPI Imaging protocol. C Behavioral ratings for each group and for both visits for trigeminal nociceptive stimulation on Visual Analogue ScaleBack to article page